I got confirmation from Audio Technica US that only IM01/02/03/04 will be sold in US, not IM50/70. Therefore, I don't believe IM50/70 warranty will be valid in US. Also from my personal experience, anything bass heavy, as IM50 was described, is not that great for watching movies since bass/sub-bass overpowers vocal dialog of mids.

Really? That stinks. Was hoping they would bring the IM50 and IM70 to the States. Was looking for a good IEM.

Edit: How comfortable are the new IEMS? I mean, can you war them for hours, etc?

I don't find them all that comfortable right now. Need the right tips. They will be here tomorrow. Ordered the Comply TS500 and T500 to cover all bases. The shipped T500 mediums are too small for my ears. The large silicones are okay but I don't like the feel in my ears. I'd rather have a shallower fit and think the Ts500s will be the perfect answer.

Compared to my Yamaha EPh-100s it is a different ball of wax. The treble on the 70s is less sibilant but a tad less articulate. The bass is diffidently weightier without mucking with the mids. Once I can seat them properly in my ears, I will be better able to evaluate the sound quality.Edited by phara0hseye - 3/4/14 at 5:24pm

I don't find them all that comfortable right now. Need the right tips. They will be here tomorrow. Ordered the Comply TS500 and T500 to cover all bases. The shipped T500 mediums are too small for my ears. The large silicones are okay but I don't like the feel in my ears. I'd rather have a shallower fit and think the Ts500s will be the perfect answer.

Compared to my Yamaha EPh-100s it is a different ball of wax. The treble on the 70s is less silo ant but a tad less articulate. The bass is diffidently weightier without mucking with the mids. Once I can seat them properly in my ears, I will be better able to evaluate the sound quality.

I got confirmation from Audio Technica US that only IM01/02/03/04 will be sold in US, not IM50/70. Therefore, I don't believe IM50/70 warranty will be valid in US. Also from my personal experience, anything bass heavy, as IM50 was described, is not that great for watching movies since bass/sub-bass overpowers vocal dialog of mids.

Thanks for the heads up. Has Audio-Technica® released MSRP's for the ATH-IM01 through -IM04? I might test one of those earsets on a Bluetooth rig with a Motorola® S705 Class 1 Bluetooth transceiver, as any of them could better my current JVC® earset, itself purchased to replace a worn-out Philips® sports earset that open-circuited its harness. As a low-voltage device limited to on or around 4 VDC (it recharges via a Micro-USB port, meaning a +5VDC supply), the S705 really wants something compatible with most Android™ devices along with Apple® iPod® and siblings.

As of 4 March 2014, I have new assignments for two Bluetooth dongles for USB 2.x. The IOGear® GBU321 Class 1 Bluetooth 2.0+EDR dongle that I previously used on my Asus® CM1630-06 (which has since been re-equipped with an Asus® USB-BT400 Class 2 Bluetooth 4.0 dongle) is now on my hot-rod LinUX box running under the BlueZ daemon and protocol stack; the S705 has no problem connecting to either system.

Thanks for the heads up. Has Audio-Technica® released MSRP's for the ATH-IM01 through -IM04? I might test one of those earsets on a Bluetooth rig with a Motorola® S705 Class 1 Bluetooth transceiver, as any of them could better my current JVC® earset, itself purchased to replace a worn-out Philips® sports earset that open-circuited its harness. As a low-voltage device limited to on or around 4 VDC (it recharges via a Micro-USB port, meaning a +5VDC supply), the S705 really wants something compatible with most Android™ devices along with Apple® iPod® and siblings.

As of 4 March 2014, I have new assignments for two Bluetooth dongles for USB 2.x. The IOGear® GBU321 Class 1 Bluetooth 2.0+EDR dongle that I previously used on my Asus® CM1630-06 (which has since been re-equipped with an Asus® USB-BT400 Class 2 Bluetooth 4.0 dongle) is now on my hot-rod LinUX box running under the BlueZ daemon and protocol stack; the S705 has no problem connecting to either system.

Yeah, I saw MSRP price list but it was higher than what's the actual selling price on Amazon going to be. I think we should expect IM01/02/03/04 pricing on par with Japan import prices (at least when it's available on Amazon from AT-US).

Regarding wireless setup, just looked up S705 - that's an 8 year old device, probably still on BT 1.0 :) The compression going to kill the sound dynamics. I tried a few in the past (Antec and Anker ones for about $30-$35), and even with BT2.1/3.0 EDR it was like listening to 192kbps mp3 in comparison to 320kbps source. Better wait for BT4.0 with apt-X codec. So far all the wireless headsets with 4.0+aptX sounded pretty decent. The only exception is my Plantronics BackBeat Go 2 with its proprietary dsp that enhances the sound. Just my opinion, but spending a few hundred bucks on IM0x and putting it through Bluetooth wireless "compression" of older protocols makes no sense. I would wait until 4.0 + aptX is available.

So, if I decided to upgrade/buy the IM70 instead of the IM50, would it be better at Movies/Videos? Due to the tighter bass that Earphonia mentioned?

As for comfort, relatively small person with relatively small ears. Just looking for the right IEMS.

Actually the different in bass is not really affecting the mids and the treble on both IM50 and IM70. Their midrange have about the same level of clarity, both have clear vocal, not muddy at all. They are not like other basshead earphones that the bass ruin the midrange and the rest of the spectrum. They are not like that. Clarity about the same level on both. IM70 has more lower bass which is also good for movie. So, IMHO both are very good for movies.

As for comfort, my opinion is not relevant to others, as we all have different shape and size of ears. I do wear them for hours in office, so for me comfort is not a problem. I do prefer without memory wire, but after some adjustment, they are ok. FYI, I use Large silicon tip, that I took from my Superlux HD381, better comfort. I usually use Medium or Large tips with other IEM. FYI I also have no comfort problem with UE TF10, or Sony XBA-H3, so I guess my ear canal is rather on the large size.

You have Sony H3 too? It wouls be wonderfull, if You can compare it too IM04 from your memory. Which You think is better?

No, I tried it at local shops, one time at Sony Center Singapore, and the other time at Jaben Singapore.

I personally don't like H3 and H2. But the units I tried most probably haven't been burnt-in, demo units. To me the Sony Hybrids don't have good blend between the dynamic driver and the BA drivers. The bass is too boomy and overpowering the rest of the spectrum. So, comparing them with IM04, based on my short experience with H3 and H2, I prefer IM04. But comparing another hybrid that I have, the DUNU DN-1000, I like the DN-1000 better than IM04.

Yes, thats exaltly how h3 sounds out of the box. But after week brain and IEM burn in - it sounds quite amazing. No more 2 separate sounding iem - one, full, big and warm sound.Bass gets much tighter - no bloat, quantity is between Im50 and IM03/CK100Pro. Detail level is similar to CK100pro too. Overall i is on same level as CK100Pro/IM03. It destroys IM50/TF10/CKS1000.

Well, for the money, I think still have to justify the sound before burn-in. I don't buy the idea of hoping that it would be a lot better after burn-in. I know burn-in will make it better, but how much better? I just can't justify the money for H3 or H2. To me IM50 sounds better than H3. I just don't like it after tried it twice.